Answer:
-3p^3+7p^2-3
Step-by-step explanation:
Answer:
162 pups are on the beach
Step-by-step explanation:
9/20 of 360
The key word "of" tells us to multiply
Variable x = number of pups
9/20 × x/360
Cross multiply
9 × 360 = 20 × x
3,240 = 20x
Divide both sides by 20
162 = x
Check our work:
9/20 = 162/360
Cross multiply
9 × 360 = 20 × 162
3,240 = 3,240
Correct
Answer:
You will have 21 positive results.
Step-by-step explanation:
Sensitivity of test:
Is the true positive rate, that is, the proportion of positive results that give positive tests.
Specificity of test:
True negative rate, that is, the proportion of negative results that give negative tests.
90% sensitive, 20 reliable people apply
0.9*20 = 18
95% specific, 60 unreliable people apply
1 - 0.95 = 0.05 of positive results.
0.05*60 = 3
How many positive results will you have?
18 + 3 = 21
You will have 21 positive results.
We have been asked to find percentage change of the gestation period of horses and cats.
First of all we will find difference between our two numbers.
Now we will find percentage of our difference with respect to gestation period of cats.
Therefore, gestation period of horses is 442% longer than the gestation period of cats.
Answer:
b= −2
Step-by-step explanation:
Please mark brainliest:)
have a nice day:)
